diff --git a/website/README.md b/website/README.md
index 3802358..3867c7a 100644
--- a/website/README.md
+++ b/website/README.md
@@ -1,2 +1,2 @@
 Run `./generate.py` to create the `_out` folder.
-Open `_out/index.html` in a browser.
+on macOS: `open _out/index.html`